# Tons of Skills Marketplace

> Tons of Skills Marketplace is an unverified plugin from jeremylongshore. Anomity scores its risk at 100 out of 100 (critical). It matches 3 dangerous capability combinations.

- **Canonical URL:** https://catalog.anomity.ai/plugin/tons-of-skills
- **Kind:** Plugin
- **Publisher:** jeremylongshore
- **Trust level:** unknown
- **Risk score:** 100/100 (critical)
- **Website:** https://tonsofskills.com
- **Repository:** https://github.com/jeremylongshore/claude-code-plugins-plus-skills
- **Last updated:** 2026-09-02
- **JSON:** https://catalog.anomity.ai/api/entries/plugin/tons-of-skills

## Description

An open-source marketplace distributing several hundred plugins and thousands of skills for Claude Code, with a CLI package manager (`ccpi`) for installing them — effectively a package ecosystem layered on top of the plugin mechanism.

A package manager for agent instructions is exactly as significant as a package manager for code, and deserves the same scrutiny that npm eventually earned. Installing through it fetches and places instruction files that the agent will follow, so it declares filesystem read and write, shell execution, and outbound network. The questions to ask are the familiar supply-chain ones: who can publish, what is reviewed, and can a published skill be changed after you installed it.

## Why it scored 100

The score starts at the catalog's neutral base of 50 and moves only through the signals below. The formula is published at https://catalog.anomity.ai/about — there is no model and no hidden heuristic.

| Signal | Contribution | Severity | Evidence |
| --- | --- | --- | --- |
| Unknown publisher | +20 | critical |  |
| 2 high-risk capabilities: filesystem:write, shell:execute | +20 | critical |  |
| Data exfiltration risk (high) | +15 | high | Shell execution combined with outbound network access can exfiltrate arbitrary data from the machine. |
| Persistence + execution risk (medium) | +5 | medium | Shell execution plus filesystem write means the agent can plant persistent backdoors (e.g. modifying startup scripts). |
| Full-control risk (critical) | +25 | critical | Shell + filesystem write + network is effectively a remote shell on the employee machine. |

Clamped result: **100/100**, band **critical**.

## Capabilities

| Capability | Name | Security implication |
| --- | --- | --- |
| `filesystem:read` | Filesystem read | Can read files on the host system. Used for context, indexing, or analysis. |
| `filesystem:write` | Filesystem write | Can create, edit, or delete files on the host system. High-impact capability — anything from helpful edits to planting persistence. |
| `shell:execute` | Shell execution | Can run arbitrary shell commands. Combined with network access this becomes effectively a remote shell. |
| `network:outbound` | Outbound network | Can make outbound network requests. Required for hosted model providers and remote APIs; also the path for data exfiltration if combined with read access. |

## Dangerous combinations matched

### Data exfiltration risk (high)

Shell execution combined with outbound network access can exfiltrate arbitrary data from the machine.

Capabilities: `shell:execute`, `network:outbound`

### Persistence + execution risk (medium)

Shell execution plus filesystem write means the agent can plant persistent backdoors (e.g. modifying startup scripts).

Capabilities: `shell:execute`, `filesystem:write`

### Full-control risk (critical)

Shell + filesystem write + network is effectively a remote shell on the employee machine.

Capabilities: `shell:execute`, `filesystem:write`, `network:outbound`

## Related plugins

- [Everything Claude Code](https://catalog.anomity.ai/plugin/everything-claude-code) — risk 100 (critical)
- [Superpowers](https://catalog.anomity.ai/plugin/superpowers) — risk 65 (high)
- [Superpowers 2](https://catalog.anomity.ai/plugin/superpowers-2) — risk 65 (high)
- [Szum-Tech Claude Plugins](https://catalog.anomity.ai/plugin/szum-tech-claude-plugins) — risk 65 (high)
- [Marketing Skills](https://catalog.anomity.ai/plugin/marketing-skills) — risk 50 (medium)
- [ClawHub](https://catalog.anomity.ai/plugin/clawhub) — risk 80 (critical)

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Source: Anomity Catalog (https://catalog.anomity.ai/). Scoring methodology: https://catalog.anomity.ai/about. Machine-readable index: https://catalog.anomity.ai/llms.txt · https://catalog.anomity.ai/openapi.json